Heat preservation louver blades and louver composed of heat preservation louver blades

Abstract

The invention discloses a heat preservation louver blade which comprises an upper blade body and a lower blade body, at least two or more upper fixing grooves are formed in one side face of the upper blade body, and lower fixing grooves with the number and the positions corresponding to those of the upper fixing grooves are formed in one side face of the lower blade body. The upper fixing grooves and the lower fixing grooves which are correspondingly arranged are connected through heat insulation strips, and more than one gap cavity is formed among the upper blade, the lower blade and the heat insulation strips. The invention further discloses a blind window formed by the heat preservation louver blade. The blind window comprises a window frame, a rotating shaft and the like. According to the heat preservation louver blade, the unique structural design is adopted, the defect that a traditional louver blade is poor in heat preservation effect and heat insulation effect can be effectively overcome, and rainwater dripping or floating on the heat preservation louver blade can be effectively drained through the structural design of the heat preservation louver blade.

Description

Technical Field

[0001] The invention belongs to the field of ventilation, and in particular relates to a heat-insulating louver and a louver formed by the louver. Background Art

[0002] At present, ventilation skylights or ventilation shutters are installed in some large industrial or commercial factories and warehouses to meet the needs of ventilation and fire smoke exhaust. Existing ventilation skylights or ventilation shutters are composed of a window frame and a number of shutters arranged inside the window frame, and these shutters are all single-layer structures. Although they can achieve the functions of rainproof and ventilation, due to their single-layer structures, not only are their thermal insulation and heat insulation effects poor, but they also have no air tightness. If heating or cooling equipment is installed indoors, it will greatly increase its energy consumption, which is not conducive to achieving the purpose of energy saving and emission reduction. Therefore, how to ensure that the shutters have thermal insulation and heat insulation effects while effectively increasing the air tightness of the entire window is a technical problem that people are eager to solve. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the existing louvers and louvers, such as poor heat preservation and thermal insulation effects and lack of air tightness, and to provide a heat-insulating louver.

[0004] Another object of the present invention is to provide a shutter composed of thermal insulation louvers.

[0005] The objective of the present invention is achieved by the following technical scheme: a thermal insulation louver, comprising an upper blade and a lower blade, at least two upper fixing grooves are arranged on one side of the upper blade, and lower fixing grooves are arranged on one side of the lower blade, the number and position of which correspond to the number and position of the upper fixing grooves, the corresponding upper fixing grooves and lower fixing grooves are connected by insulation strips, and one or more gap cavities are formed between the upper blade, the lower blade and the insulation strips.

[0006] In order to facilitate the connection with the rotating shaft of the external driving device, the present invention provides a rotating shaft mounting hole connected to the upper blade or the lower blade inside the gap cavity. Alternatively, a rotating shaft mounting hole fixedly connected to the upper blade is provided inside the gap cavity, and the rotating shaft mounting hole is connected to the lower blade through a heat insulation strip; or, a rotating shaft mounting hole fixedly connected to the lower blade is provided inside the gap cavity, and the rotating shaft mounting hole is connected to the upper blade through a heat insulation strip.

[0007] As another installation method, a shaft installation hole connected to the upper blade or the lower blade is provided outside the gap cavity.

[0008] In order to ensure the overall air tightness of two adjacent insulation louvers when closed, the present invention provides a slot at one end and / or the other end of the upper blade and one end and / or the other end of the lower blade, and sealing strips are provided inside the slots.

[0009] In order to drain rainwater or accumulated water on the louver blades, a water pouring structure is formed between the clamping grooves of the upper blades and between the clamping grooves of the lower blades.

[0010] As a preferred embodiment, the side surface of the water pouring structure is in the shape of a straight line, a broken line or an arc.

[0011] As another preferred embodiment, the present invention provides a groove at each end of the upper blade or the lower blade, and sealing strips are provided inside the grooves; or, a groove is provided at each end of the upper blade or the lower blade, and sealing strips are provided inside the grooves, and a water pouring structure is provided between the corresponding end of the upper blade or the lower blade and the groove, and the outer side surfaces of the upper blade, the water pouring structure and the groove are all located in the same plane.

[0012] The structures of the upper blade and the lower blade described in the present invention can be the same or different. When the structures of the upper blade and the lower blade are the same, their cross sections are both straight or arcuate; or, the upper blade and the lower blade are both composed of a long folded edge, a vertical folded edge perpendicularly connected to the long folded edge, and a short folded edge perpendicularly connected to the vertical folded edge, and the long folded edge and the short folded edge are respectively located on the left and right sides of the vertical folded edge; the length of the long folded edge is greater than or equal to the length of the short folded edge.

[0013] When the structures of the upper blade and the lower blade are different, a preferred embodiment is that the upper blade is in a straight line or an arc shape, and the lower blade is in a convex shape.

[0014] In order to ensure the overall thermal insulation performance of the present invention, a thermal insulation filler for enhancing the thermal insulation performance is provided inside the gap cavity.

[0015] The present invention also provides a shutter composed of the above-mentioned thermal insulation louvers, which includes a window frame, a rotating shaft, more than one thermal insulation louver arranged inside the window frame, and a driving device arranged inside or outside the window frame, one end of the rotating shaft is fixed inside the rotating shaft mounting hole of the thermal insulation louver, and the other end is connected to the driving device; when the structures of the upper blades and the lower blades of the thermal insulation louver are the same, the rotation directions of the two adjacent thermal insulation louvers when opened or closed are the same; when the structures of the upper blades and the lower blades of the thermal insulation louver are different, the rotation directions of the two adjacent thermal insulation louvers when opened or closed are opposite.

[0016] The shutter comprises a window frame, a rotating shaft and a driving device arranged inside or outside the window frame. One end of the rotating shaft is fixed inside a rotating shaft mounting hole of the thermal insulation shutter blade, and the other end thereof is connected to the driving device.

[0017] Further, the window frame includes at least an upper frame and a lower frame, and cavities are provided inside the upper frame and the lower frame; or, the window frame includes at least an upper frame and a lower frame, and cavities are provided inside the upper frame and the lower frame, and the cavities are filled with thermal insulation fillers.

[0018] To ensure that the window frame of the present invention can withstand more deformation, a fracture is provided at the top of the upper frame and the bottom of the lower frame, and a groove is provided on both side walls of the fracture, and the two grooves are connected by a heat insulation strip.

[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] (1) The thermal insulation louver of the present invention adopts a unique structural design, which can not only effectively overcome the defects of poor thermal insulation and heat insulation effects of traditional louvers, but also effectively drain rainwater dripping or falling on the thermal insulation louvers through its structural design.

[0021] (2) The upper blades and lower blades of the thermal insulation louver of the present invention are connected and fixed by a heat insulation strip, so that there is a certain elasticity between the upper blades and the lower blades. When an external object hits the upper blade or the lower blade, it can effectively buffer and prevent the upper blade and the lower blade from rigidly contacting the external object, thereby avoiding damage to the upper blade and the lower blade to the greatest extent.

[0022] (3) The present invention can simultaneously control the rotation of all the heat-insulating louvers through a driving device, making it convenient for users to open or close the louvers at any time.

[0023] (4) The present invention is provided with sealing strips on both the upper blade and the lower blade. When the shutter is closed, the sealing strip of the upper blade will be in close contact with the side of the lower blade, and at the same time, the sealing strip of the lower blade will be in close contact with the side of the upper blade, thereby achieving double sealing, which can effectively prevent external rain or air from entering the room. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure when the upper blades and the lower blades of the thermal insulation louver of the present invention are both in a straight line shape;

[0025] Figure 2 Reason Figure 1 Schematic diagram of the overall structure of the shutter formed by the thermal insulation louvers in a semi-open state

[0026] Figure 3 Reason Figure 1 The schematic diagram of the overall structure of the shutter formed by the thermal insulation louvers shown is in a fully open state.

[0027] Figure 4 Reason Figure 1 The overall structural diagram of the shutter formed by the thermal insulation louvers shown is in a closed state.

[0028] Figure 5 This is a schematic diagram of the overall structure when the upper blade and the lower blade of the thermal insulation louver of the present invention are both in a Z shape;

[0029] Figure 6 Reason Figure 4 The schematic diagram of the overall structure of the shutter formed by the thermal insulation louvers shown is in a semi-open state.

[0030] Figure 7 Reason Figure 4 The overall structural diagram of the shutter formed by the thermal insulation louvers shown is in a closed state.

[0031] Figure 8 It is a schematic diagram of the overall structure when the upper blade and the lower blade of the thermal insulation louver of the present invention are both arc-shaped;

[0032] Fig. 9 for Figure 8 The overall structural diagram of the shutter formed by the thermal insulation louvers shown is in a fully opened state;

[0033] Fig.10 for Figure 8 The overall structural diagram of the shutter formed by the thermal insulation louvers shown is in a closed state;

[0034] Fig.11 This is a schematic diagram of the overall structure of the thermal insulation louver of the present invention when the upper blades and the lower blades are in different shapes;

[0035] Fig.12 Reason Fig.11 The overall structural diagram of the shutter formed by the thermal insulation louvers shown is in a fully opened state;

[0036] Fig.13 Reason Fig.11 The overall structural diagram of the shutter formed by the thermal insulation louvers shown is in a closed state;

[0037] Fig.14 It is a schematic diagram of the enlarged structure of the upper frame of the present invention.

[0038] The names of the reference numerals in the above-mentioned drawings are:

[0039] 1—upper blade, 2—lower blade, 3—insulation strip, 4—gap cavity, 5—slot, 6—sealing strip, 7—window frame, 8—rotating shaft mounting hole, 9—water pouring structure, 10—driving device, 11—upper fixing groove, 12—lower fixing groove, 13—fracture, 14—cavity, 15—rotating shaft, 21—long folded edge, 22—vertical folded edge, 23—short folded edge, 71—upper frame, 72—lower frame. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below in conjunction with specific embodiments, but the embodiments of the present invention are not limited thereto.

[0041] Example 1

[0042] like Figure 1 As shown, the thermal insulation louver described in this embodiment is composed of three main parts: an upper blade 1, a lower blade 2, and a heat insulation strip 3. When connected, the upper blade 1 and the lower blade 2 need to be arranged in parallel with each other, and at least two or more upper fixing grooves 11 are arranged on the side of the upper blade 1, and at least two or more lower fixing grooves 12 are arranged on the side of the lower blade 2 opposite to the upper blade 1. The number and position of the upper fixing grooves 11 and the lower fixing grooves 12 need to correspond one to one, that is, one upper fixing groove 11 must correspond to one lower fixing groove 12, and the two ends of the heat insulation strip 3 are fixed in the upper fixing groove 11 and the lower fixing groove 12 respectively by riveting with a molding machine.

[0043] The upper blade 1 and the lower blade 2 can be made of plastic or aluminum alloy, and the shapes of the upper blade 1 and the lower blade 2 can be the same or different. Figure 1 The structure shown is a schematic diagram in which the upper blade 1 and the lower blade 2 have the same shape and their cross sections are both linear; Figure 5 The figure shows a schematic diagram of a structure in which the upper blade 1 and the lower blade 2 have the same shape and their cross sections are both approximately Z-shaped. Figure 8 The structure diagram shown is when the upper blade 1 and the lower blade 2 have the same shape and their cross sections are both arc-shaped. Fig.11 What is shown is a schematic diagram of the structure when the upper blade 1 and the lower blade 2 are of different shapes.

[0044] Figure 5 The structure shown is one of the typical structures when the upper blade 1 and the lower blade 2 have the same structure. Figure 5It can be seen that the upper blade 1 and the lower blade 2 are only different in the installation position and direction when they are installed and fixed. The upper blade 1 and the lower blade 2 are both composed of a long fold 21, a vertical fold 22 vertically connected to the long fold 21, and a short fold 23 vertically connected to the vertical fold 22, and the long fold 21 and the short fold 23 are respectively located on the left and right sides of the vertical fold 22. That is, one end of the long fold 21 is vertically connected to one end of the vertical fold 22, and the other end of the vertical fold 22 is connected to one end of the short fold 23, and after the long fold 21, the vertical fold 22 and the short fold 23 are connected in sequence according to the above order, the overall shape is similar to a Z shape. At the same time, the length of the long fold 21 is greater than or equal to the length of the short fold 23.

[0045] Fig.11 The structure shown is a typical structure when the upper blade 1 and the lower blade 2 have different structures. Fig.11 It can be seen that the cross section of the upper blade 1 is a straight line, while the cross section of the lower blade 2 is a convex shape; Fig.11 In the embodiment, the shape of the upper blade 1 can also be changed so that its cross section is arc-shaped, while the cross section of the lower blade 2 is still convex.

[0046] The positions of all upper blades 1 and lower blades 2 in the present invention are interchangeable, and after the positions are interchanged, all functions and effects of the present invention will not be affected. In different occasions, the upper blades 1 and lower blades 2 described in the present invention may have different names, such as when the insulation louvers of the present invention are horizontally arranged, they may be called upper blades and lower blades; when the insulation louvers of the present invention are vertically arranged, they may be called left blades and right blades, etc.

[0047] It should be noted that when the structures of the upper blade 1 and the lower blade 2 described in the present invention are the same, due to design and installation requirements, the structure of the entire upper blade 1 and the structure of the lower blade 2 are centrally symmetrical structures, that is, after the upper blade 1 is rotated 180 degrees around its center point, its structure is the same as that of the lower blade 2, and the upper blade 1 and the lower blade 2 are only different in installation position and direction.

[0048] The heat insulation strip 3 is in the shape of a long strip as a whole and is made of a material with heat insulation properties. As one of the preferred methods, the heat insulation strip 3 can be preferably implemented by using a nylon strip. In order to ensure the aesthetic effect of the entire insulation louver, the length of the heat insulation strip 3 needs to be the same as the length of the upper fixing groove 11 and the lower fixing groove 12, and the length of the heat insulation strip 3, the upper fixing groove 11 and the lower fixing groove 12 needs to be the same as the width of the upper blade 1 and the lower blade 2.

[0049] When the number of the upper fixing grooves 11 and the number of the lower fixing grooves 12 are both two, the two upper fixing grooves 11 and the two lower fixing grooves 12 are preferentially arranged at the two end positions of the upper blade 1 and the lower blade 2, respectively. At this time, a gap is formed between the upper blade 1, the lower blade 2 and the two insulation strips 3. In order to ensure the thermal insulation and heat insulation performance of the present invention, it is necessary to arrange corresponding sealants or sealing plugs around the gap so that the gap is a closed gap cavity 4.

[0050] Similarly, when the number of the upper fixing grooves 11 and the number of the lower fixing grooves 12 are both three, the three upper fixing grooves 11 and the three lower fixing grooves 12 are arranged as evenly as possible on the upper blade 1 and the lower blade 2. At this time, two gaps are formed between the upper blade 1, the lower blade 2 and the three insulation strips 3, and corresponding sealants or sealing plugs need to be arranged around the gaps so that the two gaps become a closed gap cavity 4 respectively.

[0051] The gap cavity 4 is used to ensure the heat preservation and insulation effects of this embodiment, so as to overcome the defects of poor heat preservation effect and easy formation of condensed water due to excessive heat exchange between indoor air and outdoor air when the traditional louver is a single-layer structure. The height of the gap cavity 4 here refers to the distance between the two opposite sides of the upper blade 1 and the lower blade 2. The distance can be made into any distance according to actual needs, such as 10mm, 12mm, etc., and there is no mandatory requirement in this embodiment.

[0052] The shape of the gap cavity 4 varies depending on the shape of the upper blade 1 and the lower blade 2. Figure 1 When the upper blade 1 and the lower blade 2 are both in the shape of a straight line, the overall shape of the gap cavity 4 is rectangular; when the upper blade 1 and the lower blade 2 are both in the shape of a straight line, the overall shape of the gap cavity 4 is rectangular. Figure 5 When the upper blade 1 and the lower blade 2 are both in the shape of Z, the overall shape of the gap cavity 4 is in the shape of Z. Figure 8 When the upper blade 1 and the lower blade 2 are in different shapes, as shown in FIG. Fig.11 When the upper blade 1 is shown as a straight line and the lower blade 2 is in a "convex" shape, the overall shape of the gap cavity 4 is in a convex shape. Since the shapes of the upper blade 1 and the lower blade 2 can be the same or different, and the shapes of the upper blade 1 and the lower blade 2 can be any other shapes except the straight line, "Z" shape and "convex" shape listed in this embodiment, which cannot be exhaustive, the present embodiment will not be listed in detail.

[0053] According to actual needs, in this embodiment, a heat-insulating filler made of heat-insulating material and having heat-insulating and heat-insulating effects can also be filled inside the gap cavity 4. The heat-insulating filler is preferably implemented by foamed polyurethane. Of course, the heat-insulating filler here can also be replaced by other heat-insulating materials or heat-insulating products with similar functions to foamed polyurethane.

[0054] In order to facilitate the coordinated use of the multiple heat-insulating louvers described in this embodiment and to achieve good sealing performance between them when they are used in coordination with each other, a slot 5 is provided at one end of the upper blade 1 and the lower blade 2 in this embodiment, and a sealing strip 6 is provided inside the slot 5. In order to ensure the service life of the sealing strip 6 and achieve good resistance to severe cold, heat, dryness and humidity, the sealing strip 6 is preferably made of EPDM material, and the length of the slot 5 and the sealing strip 6 is preferably the same as the width of the upper blade 1 and the lower blade 2.

[0055] The position of the slot 5 of the upper blade 1 is exactly opposite to the position of the slot 5 of the lower blade 2, and the opening direction of the slot 5 of the upper blade 1 and the opening direction of the slot 5 of the lower blade 2 are both toward one side of the gap cavity 4, that is, if the slot 5 of the upper blade 1 is set at the right position of the upper blade 1, then the slot 5 of the lower blade 2 must be set at the left position of the lower blade 2, so as to ensure that after the multiple insulation louvers are arranged in a vertical state, when they are in a closed state, the sealing strip 6 of the insulation louver located below can be tightly attached to the surface of the upper blade 1 or the lower blade 2 of the insulation louver located above, and the sealing strip 6 of the insulation louver located above can be tightly attached to the surface of the upper blade 1 or the lower blade 2 of the insulation louver located below, so that the insulation louver located above can form a good seal with the insulation louver located below, so as to achieve a good airtightness function.

[0056] In order to drain the rainwater on the upper blade 1 and the lower blade 2 in time, the present embodiment may further provide a pouring structure 9 on the upper blade 1 and the lower blade 2. As a preferred mode, the pouring structure 9 is preferably provided between the upper blade 1 and the slot 5 thereon and between the lower blade 2 and the slot 5 thereon, that is, the slot 5 of the upper blade 1 is connected to the upper blade 1 through the pouring structure 9, and the slot 5 of the lower blade 2 is connected to the lower blade 2 through the pouring structure 9. Since the position of the slot 5 of the upper blade 1 is exactly opposite to the position of the slot 5 of the lower blade 2, the position of the pouring structure 9 of the upper blade 1 is also exactly opposite to the position of the pouring structure 9 of the lower blade 2.

[0057] According to actual needs, the pouring structure 9 can be a plane or a curved surface that forms a certain angle with the plane of the upper blade 1 or the lower blade 2, or a plane or a curved surface that is in the same plane as the upper blade 1 or the lower blade 2. That is, the side of the pouring structure 9 can be in a straight line, a broken line or an arc shape. In order to ensure the overall aesthetics and sealing performance, the pouring structure 9 of the upper blade 1 and the pouring structure 9 of the lower blade 2 are preferably made into the same structure, that is, if the pouring structure 9 of the upper blade 1 is in a straight line, then the pouring structure 9 of the lower blade 2 is also in a straight line; if the pouring structure 9 of the upper blade 1 is in a broken line shape, then the pouring structure 9 of the lower blade 2 is also in a broken line shape.

[0058] When the cross sections of the upper blade 1 and the lower blade 2 are both straight lines, and the pouring structure 9 forms a certain angle with the planes of the upper blade 1 and the lower blade 2, the structure is as follows: Figure 1 At this time, from Figure 1 From the structure shown, it can be seen that the position of the slot 5 at the right end of the upper blade 1 is higher than the plane where the upper blade 1 as a whole is located, and the position of the slot 5 at the left end of the lower blade 2 is lower than the plane where the lower blade 2 as a whole is located, and the angle formed by the plane where the water pouring structure 9 is located and the planes of the upper blade 1 and the lower blade 2 is the same, therefore, the structure of the entire upper blade 1 and the structure of the lower blade 2 are centrally symmetrical structures.

[0059] Similarly, when the cross-sections of the upper blade 1 and the lower blade 2 are both "Z"-shaped, and the side surfaces of the water pouring structure 9 and the side surfaces of the upper blade 1 and the lower blade 2 are all located in the same plane, the structure is as follows: Figure 5 At this time, from Figure 5 It can be seen from the structure shown that the pouring structure 9 of the upper blade 1, the right side end of the upper blade 1 and the side of the slot 5 are all in the same plane, while the left side end of the upper blade 1 and the slot 5 arranged at the left side end are located lower than the plane where the right side end of the upper blade 1, the pouring structure and the slot 5 at the right side end are located. Correspondingly, the pouring structure 9 of the lower blade 2, the left side end of the lower blade 2 and the side of the slot 5 are all in the same plane, while the right side end of the lower blade 2 and the slot 5 arranged at the right side end are located higher than the plane where the left side end of the lower blade 2, the pouring structure and the slot 5 at the left side end are located, that is, the entire structure of the upper blade 1 and the structure of the lower blade 2 are centrally symmetrical.

[0060] When the upper blade 1 is in a straight line, the lower blade 2 is in a convex shape, and the pouring structure 9 is in a plane, the structure is as follows: Fig.11 At this time, from Fig.11 As can be seen from the structure shown, the two pouring structures 9 are both arranged on the upper blade 1, and the two pouring structures 9 are respectively arranged at the left and right ends of the upper blade 1, while no pouring structure 9 is arranged on the lower blade 2. At the same time, the two pouring structures 9, the upper blade 1 and the sides of the two slots 5 are all in the same plane.

[0061] In order to facilitate the rotation control of all the insulation louvers by the external driving device 10, a shaft mounting hole 8 connected to the upper blade 1 or the lower blade 2 is provided inside the gap cavity 4 of each insulation louver, that is, the shaft mounting hole 8 is a through hole, and its length is the same as the width of the upper blade 1 or the lower blade 2. However, it should be noted that even after the shaft mounting hole 8 is provided inside the gap cavity 4, the inside of the gap cavity 4 still needs to be formed into a sealed cavity. For example, Figure 1 The shaft mounting hole 8 is shown as being installed inside the gap cavity 4 and connected to the lower blade 2. At this time, as required, a heat insulation strip 3 may be further arranged inside the gap cavity 4, one end of the heat insulation strip 3 being connected to the upper blade 1, and the other end thereof being connected to the shaft mounting hole 8, so as to ensure the stability of the shaft mounting hole 8.

[0062] As needed, the shaft mounting hole 8 in this embodiment can also be installed outside the gap cavity 4 of each insulation louver and connected to the upper blade 1 or the lower blade 2, as long as it can be ensured that the entire insulation louver can rotate around the shaft 15 after the shaft 15 is installed in the shaft mounting hole 8.

[0063] Example 2

[0064] The second embodiment is a venetian blind composed of the heat-insulating louvers described in the first embodiment. The venetian blind comprises a window frame 7, a rotating shaft 15, a driving device 10 arranged inside or outside the window frame 7, and a number of heat-insulating louvers described in the first embodiment. The overall structure is as follows: Figures 2 to 14 shown.

[0065] One end of the rotating shaft 15 is fixed inside the rotating shaft mounting hole 8 of the thermal insulation louver, and the other end thereof is connected to the driving device 10; alternatively, after the rotating shaft 15 passes through the rotating shaft mounting hole 8, one end or both ends of the rotating shaft 15 are connected to the driving device 10 to ensure that the driving energy of the driving device 10 can synchronously or selectively drive the corresponding thermal insulation louver, thereby achieving the purpose of connecting or blocking indoor and outdoor air.

[0066] The window frame 7 at least includes an upper frame 71 and a lower frame 72, and the upper frame 71 and the lower frame 72 are both provided with a cavity 14. In addition, in this embodiment, a vertical frame may be provided between the upper frame 71 and the lower frame 72 on both sides, so that the upper frame 71, the lower frame 72 and the two vertical frames form a rectangular whole.

[0067] In order to increase the strength and thermal insulation performance of the upper frame 71 and the lower frame 72 during use, the present embodiment may also fill the cavity 14 with thermal insulation filler, which is preferably made of foamed polyurethane, and may also be made or replaced by other thermal insulation materials with similar functions to foamed polyurethane.

[0068] To ensure the practical effect of this embodiment, a break 13 is provided at the top of the upper frame 71 and the bottom of the lower frame 72, and a slot 5 is provided on both side walls of the break 13. The two slots 5 are connected by the heat insulation strip 3 in embodiment 1. The specific structure is as follows: Fig.14 shown.

[0069] As one of the preferred modes, the heat-insulating louver in this embodiment can be one piece. When the heat-insulating louver is one piece, its shape and size should match the shape and size of the window frame 7 to ensure that it can form a closed whole with the window frame 7 when closed.

[0070] As a second preferred embodiment, the number of the thermal insulation louvers can be two or more. In this case, the thermal insulation louvers can be arranged vertically or horizontally inside the window frame 7. This embodiment is described by assuming that the upper louvers 1 and the lower louvers 2 of the thermal insulation louvers are both straight and arranged vertically inside the window frame 7.

[0071] Figure 2 Reason Figure 1 The overall structure diagram of the shutter formed by the thermal insulation louvers is shown in FIG. Figure 3 Reason Figure 1 The overall structure diagram of the shutter formed by the thermal insulation louvers shown is in a fully opened state, in which the indoor and outdoor areas are still connected; Figure 4 The structure diagram of the shutters is in the closed state, at this time the indoor and outdoor are in a partition state. Figure 4 It can be clearly known that when the insulation louvers are in the closed state, the sealing strip 6 of the upper blade 1 of the upper insulation louver is in close contact with the side of the upper blade 1 of the lower insulation louver, and at the same time, the sealing strip 6 of the lower blade 2 of the lower insulation louver is in close contact with the side of the lower blade 2 of the upper insulation louver, thereby achieving a double sealing function and achieving a good sealing effect. At this time, since the upper blades 1 and the lower blades 2 are arranged in a central symmetric manner, when driving the insulation louvers to open or close, all the insulation louvers are driven in the same direction, such as when rotating clockwise at the same time, they are in the closed state, and when rotating counterclockwise at the same time, they are in the open state.

[0072] It is important to note that when using Figure 5In the structure of the insulation louver shown in the figure, the height between the plane where the long folded edge 21 is located and the plane where the sealing strip 6 arranged on the long folded edge 21 is located is the same as the height of the vertical folded edge 22 arranged vertically, so as to ensure that when the two adjacent insulation louvers are closed, the long folded edge 21 of the insulation louver of the upper layer and the long folded edge 21 of the insulation louver of the next layer are located in the same plane. Figure 7 shown.

[0073] When the insulation louver is used Fig.11 In the structure shown, since the upper blade 1 and the lower blade 2 have different shapes, when driving the insulation louver to open or close, the rotation directions of the upper and lower adjacent insulation louvers should be opposite. For example, when opening the insulation louvers, the insulation louvers of the upper layer should rotate counterclockwise, while the insulation louvers of the next adjacent layer should rotate clockwise; conversely, when closing the insulation louvers, the insulation louvers of the upper layer should rotate clockwise, while the insulation louvers of the next adjacent layer should rotate counterclockwise, and so on.

[0074] In order to facilitate the control of the opening or closing of all the heat preservation louvers, a driving device 10 can be provided inside or outside the window frame 7 in this embodiment. The driving device 10 can be implemented by an electric device, a pneumatic device or a manual driving device. In the implementation of the present invention, it is preferably implemented by a driving motor. At this time, all the rotating shafts 15 are connected to the driving device 10 through transmission components such as gears, chains or belts to ensure that all the heat preservation louvers can rotate synchronously and in the same direction or relative to each other to achieve the purpose of synchronous opening or synchronous closing.

[0075] As described above, the present invention can be well implemented.

Claims

1. A heat-insulating louver, characterized in that: The invention comprises an upper blade (1) and a lower blade (2), wherein at least two upper fixing grooves (11) are provided on one side surface of the upper blade (1), and lower fixing grooves (12) are provided on one side surface of the lower blade (2) in number and position corresponding to the number and position of the upper fixing grooves (11), wherein the corresponding upper fixing grooves (11) and lower fixing grooves (12) are connected via a heat insulation strip (3), and one or more gap cavities (4) are formed between the upper blade (1), the lower blade (2) and the heat insulation strips (3).

2. The heat-insulating louver according to claim 1, characterized in that: A rotating shaft mounting hole (8) connected to the upper blade (1) or the lower blade (2) is provided inside the gap cavity (4).

3. The heat-insulating louver according to claim 1, characterized in that: A rotating shaft mounting hole (8) fixedly connected to the upper blade (1) is provided inside the gap cavity (4), and the rotating shaft mounting hole (8) is connected to the lower blade (2) via a heat insulation strip (3); or, a rotating shaft mounting hole (8) fixedly connected to the lower blade (2) is provided inside the gap cavity (4), and the rotating shaft mounting hole (8) is connected to the upper blade (1) via a heat insulation strip (3).

4. The heat-insulating louver according to claim 1, characterized in that: A rotating shaft mounting hole (8) connected to the upper blade (1) or the lower blade (2) is provided outside the gap cavity (4).

5. The heat-insulating louver according to any one of claims 1 to 4, characterized in that: A card slot (5) is provided at one end and / or the other end of the upper blade (1), and at one end and / or the other end of the lower blade (2), and a sealing strip (6) is provided inside each of the card slots (5).

6. The heat-insulating louver according to claim 5, characterized in that: A water pouring structure (9) is formed between the upper blades (1) and the slots (5) of the upper blades (1), and between the lower blades (2) and the slots (5) of the lower blades (2).

7. The heat-insulating louver according to claim 6, characterized in that: The side surface of the water pouring structure (9) is in the shape of a straight line, a broken line or an arc.

8. The heat-insulating louver according to claim 5, characterized in that: A thermal insulation filler for enhancing thermal insulation performance is arranged inside the gap cavity (4).

9. The heat-insulating louver according to any one of claims 1 to 4, characterized in that: A groove (5) is provided at each end of the upper blade (1) or the lower blade (2), and a sealing strip (6) is provided inside each of the grooves (5); or a groove (5) is provided at each end of the upper blade (1) or the lower blade (2), and a sealing strip (6) is provided inside each of the grooves (5), and a water pouring structure (9) is provided between the corresponding end of the upper blade (1) or the lower blade (2) and the groove (5), and the outer side surfaces of the upper blade (1), the water pouring structure (9) and the groove (5) are all located in the same plane.

10. The heat-insulating louver according to claim 5, characterized in that: The upper blade (1) and the lower blade (2) have the same structure, and their cross sections are both straight or arc-shaped.

11. The heat-insulating louver according to claim 5, characterized in that: The upper blade (1) and the lower blade (2) have the same structure, and are both composed of a long folded edge (21), a vertical folded edge (22) vertically connected to the long folded edge (21), and a short folded edge (23) vertically connected to the vertical folded edge (22), and the long folded edge (21) and the short folded edge (23) are respectively located on the left and right sides of the vertical folded edge (22); the length of the long folded edge (21) is greater than or equal to the length of the short folded edge (23).

12. The heat-insulating louver according to claim 5, characterized in that: The structures of the upper blade (1) and the lower blade (2) are different. The upper blade (1) is in a straight line or an arc shape, while the lower blade (2) is in a convex shape.

13. A shutter formed by the above-mentioned heat-insulating louvers, characterized in that: The shutter comprises a window frame (7), a rotating shaft (15), a number of at least one heat-insulating shutter blade arranged inside the window frame (7), and a driving device (10) arranged inside or outside the window frame (7); one end of the rotating shaft (15) is fixed inside a rotating shaft mounting hole (8) of the heat-insulating shutter blade, and the other end is connected to the driving device (10); when the structures of the upper blades (1) and the lower blades (2) of the heat-insulating shutter blade are the same, the rotation directions of two adjacent heat-insulating shutter blades when opened or closed are the same; or, when the structures of the upper blades (1) and the lower blades (2) of the heat-insulating shutter blade are different, the rotation directions of two adjacent heat-insulating shutter blades when opened or closed are opposite.

14. The shutter composed of heat-insulating louvers according to claim 13, characterized in that: The window frame (7) comprises at least an upper frame (71) and a lower frame (72), and cavities (14) are provided inside the upper frame (71) and the lower frame (72); or, the window frame (7) comprises at least an upper frame (71) and a lower frame (72), and cavities (14) are provided inside the upper frame (71) and the lower frame (72), and the cavities (14) are filled with thermal insulation fillers.

15. The shutter composed of heat-insulating louvers according to claim 14, characterized in that: A break (13) is provided at the top of the upper frame (71) and at the bottom of the lower frame (72), and a clamping groove (5) is provided on two side wall surfaces of the break (13), and the two clamping grooves (5) are connected via a heat insulation strip (3).

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